John Langley, M.D.
NPI 1255374781 · Emergency Medicine Physician · Gretna, LA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Langley, M.D. is a Emergency Medicine Physician provider in Gretna, LA (NPI 1255374781).
Provider details
- NPI number
- 1255374781
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- H4982 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
281 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 149 | $170 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 81 | $118 |
| Critical Care, First 30-74 Minutes99291 | 51 | $205 |
Typical Medicare-allowed amounts for these services range $118–$205 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 153 | 147 |
| Prednisone | 146 | 137 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 77 | 48 |
| Ondansetron Hcl | 62 | 62 |
| Pantoprazole Sodium | 62 | 45 |
| Cephalexin | 45 | 45 |
| Dicyclomine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-13
- Last updated
- 2008-10-29
Frequently asked questions
- What is John Langley's NPI number?
- John Langley's National Provider Identifier (NPI) is 1255374781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Langley's specialty?
- John Langley is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Langley located?
- John Langley's practice location on file with NPPES is 2500 Belle Chasse Highway, Gretna, LA 70056.
- What is John Langley's phone number?
- The practice phone number listed in the NPPES registry for John Langley is (504) 392-3131.
- Does John Langley accept Medicare?
- John Langley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Langley's NPI active?
- Yes — John Langley's NPI (1255374781) is active in the NPPES registry as of the last update on 2008-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.